DIFF Subgroup
F04C 29/06 Silencing (gas-flow silencers or exhaust apparatus for machines or engines in general F01N)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Silencing
CPC: Silencing (gas-flow silencers or exhaust apparatus for machines or engines in general F01N)
Full Title
Full titles differ between systems:
IPC:
Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups > Silencing
CPC:
Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00 > Silencing (gas-flow silencers or exhaust apparatus for machines or engines in general F01N)
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Child Classifications
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